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NTA Abhyas NEET2020ChemistryElectrochemistryPractice

Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because

Options

  1. AZinc is lighter than iron
  2. BZinc has lower melting point than iron
  3. CZinc has lower negative electrode potential than iron
  4. DZinc has higher negative electrode potential than iron

Correct answer

D. Zinc has higher negative electrode potential than iron

Step-by-step solution

E Zn 2 + | Zn o = − 0.76 V E Fe 2 + | Fe o =   − 0.44     V Zinc has higher negative electrode potential than iron. So, zinc can be coated on iron to produce galvanized iron but the reverse is not possible.

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